package com.agree.utils;

import java.security.MessageDigest;
/**
 * 采用MD5加密解密
 * @author tfq
 * @datetime 2011-10-13
 */
public class MD5Utils {
	/***
	* MD5加码 生成32位md5码
	*/
	public static String string2MD5(String inStr){
		MessageDigest md5 = null;
		try{
			md5 = MessageDigest.getInstance("MD5");
		}catch (Exception e){
			System.out.println(e.toString());
			e.printStackTrace();
			return "";
		}
		char[] charArray = inStr.toCharArray();
		byte[] byteArray = new byte[charArray.length];
		for (int i = 0; i < charArray.length; i++)
			byteArray[i] = (byte) charArray[i];
		byte[] md5Bytes = md5.digest(byteArray);
		StringBuffer hexValue = new StringBuffer();
		for (int i = 0; i < md5Bytes.length; i++){
			int val = ((int) md5Bytes[i]) & 0xff;
			if (val < 16)
				hexValue.append("0");
			hexValue.append(Integer.toHexString(val));
		}
		return hexValue.toString();
	}
	
	// 测试主函数
//	public static void main(String args[]) {
//		String s = new String("tangfuqiang");
//		System.out.println("原始：" + s);
//		System.out.println("MD5后：" + string2MD5(s));
//
//	}
}